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Water system · PWSID NJ1221004

SOUTH BRUNSWICK TWP W DI

MONMOUTH JUNCTION, NJ · ~45,450 people served

Check your exact address → MONMOUTH JUNCTION overview

Fair

PurityRadar safety score

PWSID

NJ1221004

State

New Jersey

City

MONMOUTH JUNCTION

Population served

45,450

Primary source

SWP

Score history

▼ 33 points — the score moved from 100 to 67 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 67

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Jul 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

23 ppt

limit 4 ppt

Above EPA limit · 5.8×

PFBA

11 ppt

limit —

No federal limit

PFPeA

8.9 ppt

limit —

No federal limit

PFHxA

7.9 ppt

limit —

No federal limit

PFHpA

5.8 ppt

limit —

No federal limit

PFBS

3.7 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2026. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2025 Resolved

Treatment technique · Lead & Copper Rule health-based began Jul 2022 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2020 Resolved

Reporting · Lead & Copper Rule began Nov 2019 Resolved

Monitoring & reporting · EPA contaminant 3014 began Sep 2018 Resolved

Reporting · Lead & Copper Rule began Jul 2018 Resolved

Monitoring & reporting · Total coliform began Sep 2014 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Mar 2014 Resolved

Monitoring & reporting · Total coliform began Dec 2013 Resolved

Monitoring & reporting · Uranium began Oct 2012 Resolved

Monitoring & reporting · Gross alpha began Oct 2012 Resolved

Monitoring & reporting · Combined radium-226/228 began Oct 2012 Resolved

Recent enforcement actions

State action · SOX Jan 2026
State action · SFJ Jan 2026
State action · SOX Sep 2023
State action · SIE Jun 2023
State action · SIF Jun 2023
State action · SIE Mar 2023
State action · SIF Mar 2023
State action · SIE Feb 2023

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Arsenic

1 station · latest Aug 2024

1,250 · max 1,300 ng/L · 4

Copper

1 station · latest Aug 2024

2.42 · max 2.62 ug/L · 4

Lead

1 station · latest Aug 2024

757 · max 821 ng/L · 4

Fluoride

1 station · latest Jul 2021

0.05 · max 0.05 mg/l · 1

Manganese

1 station · latest Jul 2021

1,480 · max 1,480 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system NJ1221004 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.